Ladislao Bonus (June 27, 1854 – March 28, 1908) was a Filipino composer, conductor, contrabass player, and teacher.
Motivated by a strong desire to learn, he became so proficient with the violin, cello and viola that he could easily substitute for a player of any of those stringed instruments.
In the capital city, the segundo cabo of the colonial government, Antonio Morto, became one of the opera's zealous supporters.
The Manila performances of the group won the hearts of the city folks and established Bonus’ reputation in the field of music.
[2][4] Bonus married Rosalia Guanzon, by whom he had eight children, namely, Rufina, Petronila, Angel, Leonisa, Benilda, Amado, Eloisa and Alfredo.